Hi,
I'm using Spark on Windows and my Android phone and tablet.
When I leave a room on my Android devices, it disappears from my list. This works even with 1:1 rooms.
However, when I try to leave a 1:1 room on the Windows client, it stays in my list. The room doesn't show up on Android, nor on the web client, only on the Windows Client.
It works fine on Windows if it's a larger group room, but not with the 1:1s. Bug? Feature? :-)